This page contains random information gathered by reverse engineering that has yet to make it into a relevant page. Feel free to use this information and enhance relevant pages. Also feel free to message me on discord or edit my talk page with any research requests.

Active items are activated in the order they were consumed. When consuming multiple items at once, they are added based on where they appear in the room's entity list. For example

for entity in roomEntities do
if (isPedistal(entity) and isActiveItem(entity)) then
consume(entity) #Add to consumedItems list
end
end
for item in consumedItems do
UseActiveItem(item)
if isSingleUse(item) then
remove(item)
end
end

Athame is a 15% chance on kill to spawn a blackheart. Maw is a 5% chance on kill to spawn a blackheart. If both proc, the black heart drop percentage is whatever one triggered last.

The effect can stack (E.g. Athame + Razor Blade). This can cause multiple hearts to spawn if the killing damage from multiple effects all trigger on the same frame. Here is an example showing this behavior with a 100% drop rate. https://www.youtube.com/watch?v=ppXu5A2FvS8.

These are the drops when you destroy a machine(excluding restock, blood donation and the chest/darkroom).

20% (pill or trinket)

1% chest

1% locked chest

78%

33% for one of these conditions to happen based on trinkets you are holding. They are checked in this order in the case of having multiple matching trinkets. Ace of Spades = 50% spawn a card || Safety Cap = 50% spawn a pill || Match Stick = 50% spawn a bomb || Child's Heart = 50% spawn a heart || Rusted Key = 50% spawn a key

Tools

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